CN202283562U

CN202283562U - Simple deep hole stamping die

Info

Publication number: CN202283562U
Application number: CN2011203746307U
Authority: CN
Inventors: 王渤; 魏少敏; 方力恒
Original assignee: Tianjin Railway Signal Co Ltd
Current assignee: Tianjin Railway Signal Co Ltd
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-06-27
Anticipated expiration: 2021-09-30

Abstract

The utility model provides a simple deep hole stamping die. The simple deep hole stamping die comprises an upper support, a male die, an unloading plate, a female die and a pedestal, wherein the male die is fixed by a male die fixing plate; an upper base plate is fixed at the upper end of the male die fixing plate; the upper support is fixed at the upper end of the upper base plate; two ends of the upper support are tightly matched with a guide sleeve respectively; the female die is fixed at the lower end of the unloading plate; the lower end of the female die is fixed with two supporting blocks; the pedestal is fixed at the lower ends of the supporting blocks; two ends of the pedestal are tightly matched with a guide column respectively; the other end of each guide column is matched with each guide sleeve in a sliding manner; a positioning pin and a diamond-shaped positioning pin are fixed on the pedestal; an inclined groove is formed at the lower end of the unloading plate and near the male die; a slidable inclined wedged plate is arranged in the inclined groove; and a positioning pin is fixed on the female die. The simple deep hole stamping die has the advantages of eliminating unstable factors during unloading, enhancing stability of the male die, prolonging the life of the male die by about ten thousand times and meeting the requirement of batch production, along with simple structure, low cost, low failure rate, convenience for operation and the like, and overcomes the defects that a simple stamping die cannot realize deep hole stamping.

Description

A kind of simple deep hole punch die

Technical field

The utility model belongs to the cold stamping manufacture field, relates to a kind of technological equipment, especially relates to a kind of simple deep hole punch die.

Background technology

In existing technology, as hole depth rate t/D or t/B, more than or equal to being called the deep hole stamping-out at 1 o'clock, said t is thick for material, and said D is the aperture, and said B is a hole width.The general complex structure of the mould of deep hole stamping-out need adopt special protective measures to punch, and the employing measure is usually: 1. total length guide frame; 2. shorten the formula structure; 3. resilient protection nested structure etc. is carrying out the introduction that the deep hole stamping-out does not also have this respect at present on simple punch die.1 slotted hole that is of a size of 6.7 * 9.7 millimeters of processing expects that thick is 8 millimeters on Fig. 1, the workpiece shown in 2.Usually the mould of design adopts positive stripper to carry out discharging for carrying out punching through smooth guide pillar guiding perforating die.For improving the punch bending resistance; Punch structure is a stairstepping; For reducing blanking pressure; Before punching, process the circular hole of one millimeter earlier, the blade clearance is because value that allowance is limit is 2.5%t, less than the routine value; For reducing stripping force, punch die gap value is bigger than the value of conventional deep hole punch die simultaneously.Find in the use because the workpiece injustice reaches 0.1mm; And the eccentric load force-bearing situation when causing discharging is as shown in Figure 3;, the punch stamping-out is being with workpiece to be up to positive stripper after finishing, because workpiece and stripper contact plane are not parallel, especially when when a punch side far away is higher; High point at first is obstructed, at this moment the suffered stress of punch be allowable value 3-5 doubly.So can find out that from theory analysis eccentric load is the main cause that punch fractures, so the punch life-span is shorter; At most only 200 times, sometimes even just fracture for tens times, exist die life low; Die change is wasted time and energy, and technical problems such as inefficiency can not satisfy production requirement.

Summary of the invention

The problem that the utility model will solve provides a kind of simple in structure, simple to operate, a kind of simple deep hole punch die that production efficiency is high, especially is fit to the deep hole stamping-out of profiled piece.

For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of simple deep hole punch die; Comprise pop-up, upper padding plate, punch retainer, guide pin bushing, punch, stripper, die, back-up block, guide pillar, base, punch is fixed by punch retainer, and said punch retainer upper end is upper padding plate fixedly; Said upper padding plate fixedly pop-up of upper end, equal close-fitting one guide pin bushing in said pop-up two ends; Said stripper lower end is die fixedly, and two back-up blocks, said back-up block lower end firm banking are fixed in said die lower end; Equal close-fitting one guide pillar in said base two ends, the said guide pillar other end is all joined with the guide pin bushing cunning; Be fixed with an alignment pin and a rhombus alignment pin on the said base, said alignment pin and rhombus alignment pin are between two back-up blocks; Said stripper lower end has a skewed slot near the part of punch, is provided with a wedge plate slidably in the skewed slot; Said stripper top has a hole, and said hole is relative with said punch, a fixing alignment pin on the said die, and said alignment pin is below said stripper.

Said alignment pin and rhombus alignment pin are for locating used for workpiece.

Further, the external diameter cunning of the aperture in said hole and punch is joined.

Advantage and the good effect that the utlity model has are: owing between stripper and workpiece, increase a wedge plate, skewed slot of processing on the stripper near punch, stripper, workpiece and die are connected as a single entity during use; The bending stress that eccentric moment when having reduced discharging is brought to punch; Simultaneously punch has been played protective effect, destabilizing factor when having eliminated discharging has strengthened the stability of punch; The punch life-span is brought up to nearly ten thousand times, has reached batch production requirement; Overcome simple blanking die and can not realize the shortcoming of deep hole stamping-out, have simple in structure, cost is low, the fault rate lower security is reliable, be convenient to advantage such as operation.

Description of drawings

Fig. 1 is that the workpiece master looks sketch map;

Fig. 2 is the workpiece schematic side view;

Fig. 3 is the eccentric load force-bearing situation sketch map of prior art when causing discharging;

Fig. 4 is the utility model front view;

Fig. 5 is the utility model A-A vertical view.

Among the figure:

1, pop-up 2, upper padding plate 3, punch retainer

4, punch 5, guide pin bushing 6, wedge plate

7, alignment pin 8, stripper 9, back-up block

10, rhombus alignment pin 11, hole 12, guide pillar

13, base 14, die 15, workpiece

The specific embodiment

Like Fig. 4, shown in 5; A kind of simple deep hole punch die of the utility model; Comprise pop-up 1, upper padding plate 2, punch retainer 3, guide pin bushing 5, punch 4, stripper 8, die 14, back-up block 9, guide pillar 12, base 13, punch 4 is fixing by punch retainer 3, and said punch retainer 3 upper ends are upper padding plate 2 fixedly; The fixedly pop-up 1 of said upper padding plate 2 upper ends, equal close-fitting one guide pin bushing 5 in said pop-up 1 two ends; Said stripper 8 lower ends are die 14 fixedly, and two back-up blocks 9 are fixed in said die 14 lower ends, said back-up block 9 lower end firm bankings 13; Equal close-fitting one guide pillar 12 in said base 13 two ends, said guide pillar 12 other ends are all slided with guide pin bushing 5 and are joined; Be fixed with an alignment pin 7 and a rhombus alignment pin 10 on the said base 13, said alignment pin 7 and rhombus alignment pin 10 are between two back-up blocks 9; Said stripper 8 lower ends have a skewed slot near the part of punch 4, are provided with a wedge plate 6 slidably in the skewed slot; Said stripper 8 tops have a hole 11, and said hole 11 is relative with said punch 4, a fixing alignment pin 7 on the said die 14, and said alignment pin 7 is below said stripper 8.

The external diameter cunning of the aperture in said hole 11 and punch 4 is joined.

The course of work of this instance: when using simple deep hole punch die; Earlier workpiece 15 being put into simple deep hole punch die positions through rhombus alignment pin 10 and alignment pin 7; Again wedge plate 6 is pushed locking along skewed slot, the punching of workpiece is carried out in the hole 11 that punch 4 passes on the stripper 8, after punching finishes, wedge plate 6 is taken off; Workpiece 15 is taken out, accomplished the deep hole stamping-out of workpiece 15.The punch life-span of the simple deep hole punch die of the utility model is brought up to nearly ten thousand times, has reached batch production requirement

More than the embodiment of the utility model is specified, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.

Claims

1. simple deep hole punch die; Comprise pop-up, upper padding plate, punch retainer, guide pin bushing, punch, stripper, die, back-up block, guide pillar, base; Punch is fixed by punch retainer; Said punch retainer upper end is upper padding plate fixedly, said upper padding plate fixedly pop-up of upper end, equal close-fitting one guide pin bushing in said pop-up two ends; Said stripper lower end is die fixedly, and two back-up blocks, said back-up block lower end firm banking are fixed in said die lower end; Equal close-fitting one guide pillar in said base two ends, the said guide pillar other end is all joined with the guide pin bushing cunning, it is characterized in that: be fixed with an alignment pin and a rhombus alignment pin on the said base, said alignment pin and rhombus alignment pin are between two back-up blocks; Said stripper lower end has a skewed slot near the part of punch, is provided with a wedge plate slidably in the skewed slot; Said stripper top has a hole, and said hole is relative with said punch, a fixing alignment pin on the said die, and said alignment pin is below said stripper.

2. simple deep hole punch die according to claim 1 is characterized in that: the external diameter cunning of the aperture in said hole and punch is joined.